Means for lubricating elevator guide-rails.



EA MAOINDOE.

MEANS FOR LUBRIGATING ELEVATOR GUIDE RAILS.

APPLICATION FILED PEB.12, 1908.

Patented Dec. 1,1908.

,4 TTIIRNF V UNITED STATES PATENT OFFICE.

FRANKLIN MACINDOE, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR'OF ONE-THIRD TO THOMAS DUNCAN JUST AND ONE-THIRD TO PETER PENNSYLVANIA.

MEANS FOR LUBRICATING ELEVATOR GUIDE-RAILS.

Specification of Letters Patent.

Patented Dec. 1, 1908.

Application filed rem-iv 12, 1908. Serial No. 415,515.

To all whom it may concern:

Be it known that I, FRANKLIN MACINDOE, a citizen of the United States, and a resident of the city and county of Philadelphia,

' State of Pennsylvania, have invented certain new and useful Improvements in Means -for Lubricating Elevator Guide-Rails, of

which the followin is a specification.

My invention-re ates to improvements in devices for lubricating-the guide-rails of elevators, and the object of my invention is to furnish; an automatically operating device, carried by and moving with the elevator car or cage, for supplying grease as needed to the guide-rails which direct the car or cage dur- 1n its movements.

n the accompanying drawings, in which similar letters of reference indicate similar parts throughoutthe several views :-Figure 1, is a front elevation of my elevator guiderail lubricating de'vice, one of. the grease distributers and its holder being shown in section, Fig. 2, a section of Fig. 1 on line 22, art of one. of the grease distributer holders eing broken away.

a 1s a frame which is carried by the elevator cage and which may itself form the guide which engages the guide rail or which may be separate from the guide. Theframe a carries a standard I) which carries a grease distributing chamber a which carries a compression The usual practice is to have the latter en- I have gage three sides of the guide-rail. shown three grease distributers, two of which are adapted to enga e and lubricate opposite sides of the rail, and the third to lubricate its front.

The grease distributers are carried in holders g formed in the p ate a; they are cored out, as at h; their faces are fiat so as to bear against the guide rail, and the up er and lower edges of their faces are roundbd off as shown so that they may easily pass over any irregularities or splices that may be in the rail. The conduits e leading from the grease distributing chamber to the distributers f are secured to the latter and discharge their contents into the distributers, the grease being forced through by the s rin or other-means with which the cup is rnished for this purpose.

A s ring or springs i forces the face of the distri ute'r f against the guide rail, and in order that there shall not be too much rease fed from the distributer to the ra's the springs ishould be sufficiently strong to revent the column of grease in the conduits e and distributors f from engagin the guide T. MCGLYNN, OF PHILADELPHIA,

rail and forcing the distributers ackwards,

in other words the pressure exerted by the springs i is slightly in excess of the compression pressure of thegreasc cup, this arrangement, while assuring an am le supply of grease for lubrication, eifectua ly prevents a wasteful use, in fact there is no appreciable feeding of grease upon a well lubricated guide as the grease thereon acts to seal the grease outlet in the distributers, but a part of the guide not lubricated actsto frictionally with- .draw a small amount of grease out of the dis tributer as itpasses.

In order to attach the grease conduits e to the distributors f and to permit the former to follow the movements of the'latter the frame I a, is perforated as shown at For purposes of adjustment the frame a maybe furnished with a tongue in, which is carried by a bifurcated cap 1 adapted to be screwed to a post or rod n. Setscrews m carried by ca Z engage the tongue I: and

hold it'in any esi're'd position in the cap. A rotary adjustment may be made, if re uired, by turning the threaded cap as require upon its 'su orting post.

0, 1g. throu h one of the guide rails for the elevator and the manner in which its sides are en- -ga ed by the grease distributors.

aving thus described my invention I claim as new and desire to secure by Letters atent:

. shows a transverse section 1. In a device for lubricating the guiderails of an elevator car, in combination, a frame, grease dlstrlbuters carried by said irame adapted to engage sald guide-rails, a

- compression grease cup, and flexible conduits connecting said grease cup and grease disaributers.

2. In a device for lubricating the guiderails of an elevator car, in combination, a frame, grease distributers carried by said frame, springs forholding said distributers in contact with said guide-rails, a compression grease cup, and means for conveying grease from said cup to said distributers,the pressure exerted upon said distributers by said springs being somewhat in excess of the compression pressure of said cup.

3. In a device of the. character described in combination, a frame furnished with perforated holders, grease distributers carried in said holders, springs for holding said distributers incontact with the guide-rails of the car, a standard carriedby saidframe, a grease distributing chamber carried by said standard, flexible conduits connecting said grease distributing chamber and said distributers, and means for supplying grease under pressure to said grease distributing chamber.

FRANKLIN MAolNDOE.

Witnesses: CHARLEs A. BUTTER, J. CRAIG SHIREDY. 

